package com.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.reggie.configuration.R;
import com.reggie.pojo.Category;
import com.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.List;

@RestController
@Slf4j
@RequestMapping("/category")
public class CategoryController {

    @Autowired
    private CategoryService categoryService;

    @PostMapping
    public R<String> save(@RequestBody Category category){
        log.info("category:{}",category);
        categoryService.save(category);
        return R.success("添加分类成功");
    }

    @GetMapping("/page")
    public R<Page> page(Integer page,Integer pageSize){
        //构造分页构造器
        Page<Category> pageInfo = new Page<>(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort);
        categoryService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id删除分类
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long ids){
        log.info("删除分类，id：{}",ids);
        categoryService.remove(ids);
        return R.success("分类信息删除成功");
    }

    /**
     * 根据id修改分类数据
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request, @RequestBody Category category){
        log.info("修改分类信息：{}",category);
        category.setUpdateTime(LocalDateTime.now()); //自动填充出问题，只能手动填充
        category.setUpdateUser((Long) request.getSession().getAttribute("employee"));
        categoryService.updateById(category);
        return R.success("修改分类成成功");
    }

    /**
     * 根据条件查询分类数据
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category){

        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //添加条件
        queryWrapper.eq(category.getId()!=null,Category::getId,category.getId());
        //添加排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        //执行方法
        List<Category> list = categoryService.list(queryWrapper);

        return R.success(list);
    }

}
